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  • Home of the BEAR (BSU Experimental Astrophysics Research) Team.

  • Whirlpool Galaxy: 14-inch Celestron HD Edge Schmidt-Cassegrain

  • Starburst Galaxy M82 imaged at the BSU Observatory.

  • Look through our telescopes during public events, or book a private one.

  • Phases of the Moon


The BSU Observatory hosts public and private viewing events, runs K-12 workshops, and provides academic resources for student research, astronomy courses, and service-learning.

Public Viewing Events

Public Nights - Summer 2018
Wednesday, May 23 @ 9:00 pm
until Wednesday, August 08 @ 9:00 pm
DMF Science and Mathematics Center Observing Decks
24 Park Ave.
02325 Bridgewater , MA
United States
Massachusetts US

During public nights, the observatory's viewing patios are open with multiple telescopes for you to look through, and a staff of astronomy enthusiasts ready to talk astronomy!  Dates and times are listed below (and are all Wednesdays from 9:00 pm - 10:30 pm):

- May 23 (with a rain date of May 30)

- June 13 (with a rain date of June 20)

- July 18 (with a rain date of July 25)

- August 1 (with a rain date of August 8)

Be sure to check our weather announcement before making the trip!  You may park in the West Campus Lot.

Mars Opposition Event!
Friday, July 27 @ 9:00 pm
until Friday, July 27 @ 11:00 pm

On July 27, 2018, Mars and Earth will pass by each other in their orbits - this is the closest they'll be to each other in 2.5 years!  During this time, Mars appears bigger in our telescopes.  Join us at the observatory for this unusual view!  (Weather allowing, of course).

If you can't make the Friday, we also have public nights scheduled the Wednesday before or after this event.  Mars will appear large in the telescope on those days, too.

Call our hotline at 508-531-DARK a few hours before all events to check whether we will be open (or follow us on Twitter @BSUObservatory, or check our Facebook page at Bridgewater State University Observatory).  You may park in the West Campus Lot behind the Science and Mathematics Center.  Use any entrance and make your way to the building's central lobby.  There, you will find elevators and stairs to take you to the 5th floor observing decks.  Elevator: Use the right-hand elevator to go all the way to floor 5.  Stairs:  Go all the way up the main staircase to the 4th floor, then turn right and right again.  Enter the first door on your right (it's red).   The staircase here takes you to the 5th floor.

Observatory outreach sessions are free, appropriate for all ages, and made possible by the support of BSU's Physics department as well as CASE, the Dean's Office, Provost's Office, Office of External Affairs and the Office of Academic Affairs.

Please click on the right-hand link to our outreach program for additional information on public and private observatory events.

If you wish, you can print out a parking pass from our Parking Services website - this is not necessary during our event times, but would prevent ticketing outside our event times!

Three of our students have built a 17-inch dobsonian telescope that we can use on our decks.  This telescope is more powerful than the one in the dome!